[gmx-users] amber forcefield

2012-12-27 Thread Shine A
sir, I am studying the dynamics of membrane protein.I want to use amber force field.Then what changes should I make in the ffnonbonded.itp and ffbonded.itp?Is it similar as in Justin manual?Is it necessary to convert C6 and C12 values in lipid.itp(for gromos) to values in terms of sigma and epsi

[gmx-users] question about define groups

2012-12-27 Thread yeqing1211
Hello everyone: I prepar to make a QM/MM simulation by employing gromacs compiled with mopac, and need to define two groups which are treated by QM and MM separately, the question is this: during the dynamics course of my research system, particles will enter/leave the QM zone, so there is a

Re: [gmx-users] fftw3f errors despite having the right libraries in the right places installation on MAC

2012-12-27 Thread Mark Abraham
Standard procedure is to do ./configure make sudo make install or ./configure --prefix=/somewhere/you/can/write/to make make install I suggest you use sudo to get rid of your progress to date and start again. Using sudo anywhere else is a recipe for trouble. Mark On Thu, Dec 27, 2012 at 3:41

Re: [gmx-users] adsorption

2012-12-27 Thread ms
On 27/12/12 16:29, vahid garshasbi wrote: I run my simulation, now i want to analysis my data. i simulate ion adsorption on CNT and i want to determine adsorption values in deffrent concentrations of ion and then plot adsorpttion curve. what shod i do? Ask your advisor. thanks, vahid --

Re: [gmx-users] fftw3f errors despite having the right libraries in the right places installation on MAC

2012-12-27 Thread maria goranovic
I will try to fix this. Thank you. Now, the problem I have is that the executables all belong to root, and as a user, I am unable to execute them. How to fix this little one? Maria On Thu, Dec 27, 2012 at 3:36 PM, Mark Abraham wrote: > sudo should not be necessary for looking in those directori

Re: [gmx-users] fftw3f errors despite having the right libraries in the right places installation on MAC

2012-12-27 Thread Mark Abraham
sudo should not be necessary for looking in those directories. Whoever set them up has not set up the permissions on them properly. Fix the problem, not the symptoms - you do not want to have to configure software as root, or you are trusting every author of that software not to trash your system a

Re: [gmx-users] fftw3f errors despite having the right libraries in the right places installation on MAC

2012-12-27 Thread maria goranovic
turned out to be a sudo problem. without sudo, the compiler could not look into the root directories. sorry for spamming :( On Thu, Dec 27, 2012 at 2:25 PM, maria goranovic wrote: > Yes, I can see them in printenv > > does this have anything to do with single or double precision? > > > On Thu, De

Re: [gmx-users] fftw3f errors despite having the right libraries in the right places installation on MAC

2012-12-27 Thread Mark Abraham
Maybe. As you will see in the installation instructions, you have to match the precision of GROMACS and FFTW, and you haven't told us about the former... On Thu, Dec 27, 2012 at 2:25 PM, maria goranovic wrote: > Yes, I can see them in printenv > > does this have anything to do with single or doub

[gmx-users] RE: gmx-users Digest, Vol 104, Issue 114

2012-12-27 Thread Julio Dominguez
Maria, You can place the export command in your .profile. That will get them to work. Use something like env | grep CPPFLAGS to make sure those settings are active before compiling gromacs. Best regards. > Message: 6 > Date: Thu, 27 Dec 2012 11:31:10 +0100 > From: maria goranovic > Subject: [gmx

Re: [gmx-users] fftw3f errors despite having the right libraries in the right places installation on MAC

2012-12-27 Thread maria goranovic
Yes, I can see them in printenv does this have anything to do with single or double precision? On Thu, Dec 27, 2012 at 1:38 PM, Mark Abraham wrote: > Are those variables actually showing up in your environment? > > On Thu, Dec 27, 2012 at 11:31 AM, maria goranovic > wrote: > > > Dear All > > > >

[gmx-users] About g_enemat problem

2012-12-27 Thread rama david
-- Forwarded message -- From: rama david Date: Wed, Dec 26, 2012 at 9:55 PM Subject: About g_enemat problem To: gmx-users-ow...@gromacs.org Hi Gromacs friend. I simulated a system containing random peptide I found that as they start to interact they change there secondary confor

Re: [gmx-users] fftw3f errors despite having the right libraries in the right places installation on MAC

2012-12-27 Thread Mark Abraham
Are those variables actually showing up in your environment? On Thu, Dec 27, 2012 at 11:31 AM, maria goranovic wrote: > Dear All > > I am trying to install 4.5.5 on my mac. I have installed fftw3 with > --enable-float, and have used the CPPFLAGS and LDFLAGS options in my > .bashrc file. GROMACS s

Re: [gmx-users] problems installing 4.5.5 on mac

2012-12-27 Thread maria goranovic
turns out that the command line tools were not installed by default in xcode. installing them helped On Tue, Dec 25, 2012 at 1:43 PM, Mark Abraham wrote: > Unfortunately, it means what it says. Xcode by default does not install the > command line compilers, so you might need to Google the solutio

Re: [gmx-users] merge .gro, .top files

2012-12-27 Thread Tsjerk Wassenaar
Actually, merge.py takes care of it already. If you use that, the sed command shouldn't be needed. Did you perhaps mean updating the numbers of molecules in the topology? I don't have an easy solution for that. Unless for the case where you have 1.gro/1.top and 2.gro/2.top, with all moleculetypes